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DickDastardly

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Everything posted by DickDastardly

  1. Damn - I was going to hit you up for a ride for that one!
  2. This has been done to death. They are classified as whisker poles under IRC, or they were. I can't recall whether IRC has moved against them but race boats have been using them for some while now.
  3. Raced against it out of Sydney for a while a couple of owners back. Nice boat but the IRC rating was just a bit punishing back then. May have got better since but that prod is a monster and no doubt attracts a good whacking.
  4. Pittwater - South Solitary - Lord Howe - Sydney ....
  5. http://www.mercedes3.com/press
  6. I don't see the issue. I very much doubt an autopilot is faster than a real helm most of the time, on most boats. It will encourage short-handers, of course, and that can't be bad. A good crew will sail faster with a good helm most of the time. Sure, on IMOCA 60s and the like it may well be competitive or better - but that's a very specialised case and it's as much a function of the constraints of single-handed sailing in long races than the inherent superiority of today's technology - good as it's become.
  7. I'd second that upwind, downwind I use Target Boatspeed and TWA. Often display TWA Delta on the instruments - as in the difference between TWA and Target TWA. Helpful to inform helmsman that they are on target speed but x degrees above or ideally below Target TWA
  8. Could be like whales. After a year with no predation, we may see their numbers explode...
  9. There are actually MWA and MWS Variables in H5000 systems though strangely only available over the Websocket interface. These are the raw (undamped and uncalibrated) AWA and AWS values form the masthead. It's useful to log these against AWA and AWS to give an overview of how your calibrations are working.
  10. +1 on that, though the TWA/TWS values on modern high-end systems are pretty good these days but as mentioned above - a lot of effort is required to get them that good and indeed keep them there. At a club level, using Expedition or something similar to log your race data provides a lot of useful input to calibration given that investing crew days on the water in instrument calibration is normally not easy to do. Top-end programs often pay rail meat and one or two pros to take the boat out for dedicated calibration days - but even then getting data across a wide range of wind and sea stat
  11. Yeah I remember hearing that. Had to think about it a bit but it made sense eventually.
  12. You gotta think vectors. In general: 1) I very much doubt 12 metres got down to 34 degrees, maybe 36 or 37. Instrument calibrations being what they are TWA is always a bit suspect, and especially so back in 12m days when the systems were a lot less sophisticated than they are now. 2) AWA is the limiting factor. A soft sail (jib), no matter how expensive will struggle to produce lift much below around 21 degrees AWA - and that in flat water. Plug that into a vector equation with boat speed, wind speed, current and leeway and you will get a minimum TWA value. For TP52s I'd guess i
  13. It's certainly the case that the group of top race boat owners have sway at the CYCA - as was always the case, pre-IRC it was the IMS owners and prior to that the IOR Owners. Not sure that's necessarily a bad thing. Right now TP52s are well treated under IRC, but that may not always be the case. Important to note that the TP52 isn't necessarily as dominant under IRC in other waters - if more of those European IRC specials were playing in these waters they would likely figure in the big results. And, some of the same owners would possibly be in on the game.
  14. We got a message later in the evening yesterday from the club naming the unfortunate individuals but I for one didn't get the relevant time slots until a message from NSW Health this morning so it was a sleepless night. Thankfully I left the club around 30 min before the NSW Health-nominated time slot on Sunday, having not been down there for a couple of weeks. But the nominated folk may have inadvertently infected someone else at the CYCA, member or staff, on Thursday and Friday nights when they were there so I'm getting tested anyway. At a time where collective anxiety levels ar
  15. Really fucking unhelpful e-mail from the CYCA. I received it today being a member. No mention of when the infected member and partner were at the club No mention of which parts of the club compound they were in or what activities they were involved in So I have no fucking idea whether I'm at risk or not. Pure genius. Not.
  16. There's context to consider here. Scow bows work fantastically for light and stable boats that tend to plane, the buoyancy of the bow really helps the boat lift. Not so great for heavier types and not so great upwind in any real seaway either. I expect this will limit trickle-down to the wider cruiser-racer fleet.
  17. The locks and multiple purchases reduce compression on spars, stretch in ropes and loads on jammers in general at the cost of having a lot more rope to deal with but that is less of an issue when furlers are the norm and sail handling is limited as it is on these boats.
  18. For any boat the loads on the sails and sheets (for a given sail type - solid wings are a different case) are more or less proportional to the force required to push it through the water. Newton's second law of motion applies. For a light boat with limited drag, the forces are relatively low as the boat doesn't need too much drive force to push it to high speeds. Further, in IMOCAs the righting moment is effectively limited through the use of a one-design mast so that also limits forces. The sail and sheet loads on a 12 metre, would be massively larger than on these boats - 46 foot waterli
  19. Not necessarily. The reason they go so fast is because both displacement and drag are so low so the forces will be relatively modest.
  20. You get a blooper, I'm coming down for a ride - worth a couple of weeks quarantine...
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